Improvement in caps and anchors for metallic roofing



G. HYNDMAN. Gap and Anchor for Metallic Roofing.

No. 208,395. Patented Sept. 24, 1878.

UNITED STATES PATENT OFFICE.

IVILLIAM G. HYNDMAN, OF OINODTNATI, OHIO.

IMPROVEMENT IN CAPS AND ANCHORS FOR METALLIC ROOFING.

Specification forming part of Letters Patent No. 208,395, datedSeptember 24, 1878; application filed July 22, 1878.

To all whom it may concern Be it known that I, WILLIAM G. HYND- MAN, ofCincinnati, in the county of Hamilton and State of Ohio, have invented anew and valuable Improvement in Gap and Anchor for Securing SheetMetalPlates to Structures; and do hereby declare that the following is afull, clear, and exact description of the construction and operation ofthe same, reference being had to the annexed drawin gs, making a part ofthis specification, and to the letters and figures of reference markedthereon.

Figure l of the drawing is a representation of a transverse section of ajoint of roofing made according to my invention. Fig. 2 is a similarview of amodification of the same. Fig. 3 is a perspective view of thecap and anchor. Fig. 4 is a plan view of the modification 5 Fig. 5, anend view of Fig. 3; Fig 6, a perspective view of the anchor withbifurcated end for securing it to the sides of the cap.

This invention has relation to that class of devices used to securesheet-metal plates to roofs or other structures, known to the trade as acap and anchor, and has for its object to construct a device of theabove character in a manner that will render it strong and durable, andadmit of it being prepared in the shop by suitable machinery in acomplete form and ready for use upon the roof, thereby greatly lesseningthe amount of labor experienced with the ordinary cap and cleat, as willbe hereinafter described.

In the accompanying drawings, A represents the section of a roof orother structure, and B the anchor, secured at one end to a cap, 0, byrivets a, which secures and holds the sheet-metal plate D upon the roof.

The anchor B is preferably made from an elongated plate or strip ofmetal, bent to form a double thickness of metal, the ends thereof beingriveted to the cap 0 and turned down with the cap, as illustrated inFigs. 1, 3, and 5 of the drawings.

The lower end of the anchor is bent at a right angle, in order that itmay be secured to the roof by rivets or other suitable means.

Although I have shown and described the above means of forming theanchor by connecting or securing the ends of the same to the cap, it isevident that in place of bending the metal plate or strip double theanchor may be made of a single thickness and slit or cut to form doubleflanges or a bifurcated end, which may be bent outward and riveted tothe sides of the cap, as illustrated in Figs. 2, 4, and 6, suchmodification being considered a substantial equivalent, and comingwithin the scope of my invention.

By riveting the anchor to the sides of the cap great strength anddurability are obtained over those now in use, also producing a mostperfect fastening for the plates of metal, at the same time giving ampleroom for the contraction and expansion of the sheet metal plates underthe cap, without the possibility of loosening the fastenings of theanchor from the sheetings.

It will be seen that the nails, being under the sheets, are not exposedto the weather, and, there being no nails, screws, or rivets through thebody of the sheet-metal plates, leaves them free to expand and contractunderneath the cap, which is considered very essential in roofin g ofthe class to which my invention appertains.

Having now fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the cap, of an anchor presenting two free endsto be secured thereto, one of said ends being riveted to the cap on oneside thereof and the other end upon the opposite side, substantially asand for the purpose set forth.

2. A cap and anchor for securing sheetmetal plates to structures, theanchor being constructed of a double thickness of metal, the endsthereof being turned dow'n'or outward and riveted to both sides of themetal gap, substantially as and for the purpose set orth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

WILLIAM G. I-IYNDMAN.

W'itnesses R0131. J. HYNDMAN, ALBERT L. WELLMAN.

